Hoisting and unloading sling por wagons and the like



c, w. LINNERTZ. HOISTING AND UNLOADING SLlNfi FOR WAGONS AND THE LIKE;

APPLICATION FILED JUNE 4. 1919- Patented Dec. 16,1919.

' 2 SHEETS-SHEET l C. W. LINNERTZ.

HOISTING AND UNLOADING SLING FOR WAGONS AND THE UKE.

APPucATIbN HLED JUNE 4.191s.

avwe/wto'a Patented Dec. 16,1919.

2 SHEETS-SHEET 2 mm E w 5 s m Q a MW g M? m a MN R MM m @m.

UNITED STATES PATENT OFFICE.

CHRIS W. LINN ERTZ, OF MIN'OT, NORTH DAKOTA.

HOISTING AND UNLOADING SLING FOR WAGON S AND THE LIKE.

Specification of Letters Patent.

Patented Dec. 16, 1919.

Application filed June 4, 1919. Serial No. 301,784.

North Dakota, have invented certain new' and useful Improvements inHoisting and Unloading Slings for Wagons and the like, of which thefollowing is a specification, reference being had to the accompanyingdrawings.

This invention relates to an improved hoisting and unloading sling forwagons, carts, cars and the like, particularly adapted for hoisting andunloading bundles of material out of loaded carts, cars or Wagons, andis especially adapted for unloading cane, corn and the like, whereby thematerial to be hoisted or lifted may be easily and quickly removed, andthen easily, quickly and conveniently removed from the sling;

While the design and construction at pres ent illustrated and set forthis deemed preferable, it is obvious that as a result of a reduction ofthe invention to a more practical form for commercial purposes,- theinvention may be susceptible to changes, and the right to these changesis claimed, provided they are comprehended within the scope of what isclaimed.

The invention comprises further features and combination of parts, aswill be hereinafter set forth, shown in the drawings and claimed.

In the drawings:

Figure 1 is a perspective view of the improved unloading slingconstructed in accordance with the invention, showing the sling arrangedin the form of a loop, to hold and support the material to be unloaded.

Fig. 2 is a plan view of the sling opened up.

Fig. 3 is an enlarged detail perspective view of the locking meansbetween the opposite sides of the sling;

Fig. 4 is an enlarged longitudinal sectional view through the lockingmeans.

Fig. 5 is an enlarged detail perspective view of the locking barproperof the locking means.

Fig. 6 is a sectional view on line 66 of Fig. 4:, showing the staplesconnected to the tubular member of the locking means, and between theshanks of the staples the looking bar is capable of movement.

Fig. 7 is an enlarged sectional View of one of the tubular rods, showingone end of the latching or locking bar locked, and the rope attachingmember detached.

Referring more especially to the drawings, l designates an elongatedtubular rod, and 2 denotes staples, which are fastened to the tubularrod at intervals along its length. The shanks of these staples passthrough the tubular rod, and where they pass through the rod they arespaced, as shown in Fig. 6. The end portions of the shanks of thestaples are deflected or mashed or swaged as shown at 3, to anchor theends of the shanks of the staples securely to the tubular rod. Where thecurvature of the loop end of each staple occurs, as indicated at 1, theycooperate with the mashed or deflected ends 3 of the shanks of thestaple to hold the staple in place.

Extending longitudinally of the tubular rod is a locking rod 5 providedwith enlargements 6 at intervals, one at each end, and two intermediatethe enlargements at the ends. These enlargements 6 are flattened,

and are provided with L-shaped or bayonet slot 8, to receive a bolt 9,which extends transversely of the tubular rod, in order to hold thelocking rod in the tubular rod for limited movement. The enlargement atthe other end of the locking rod has attached thereto a ring 10, towhich a trip rope 11 is connected. The enlargement having. the ring 10is formed with a V-shaped slit 12, thereby causing to be formed ayieldable prong or spring catch 13, which is provided with a lug 14:. Aspring 15 is connected at 16 to the enlargement having the ring 10, andthe other end of the spring is fastened at 17 to the interior wall ofthe tubular rod; The tubular rod at intervals along its length isprovided with slots or openings 18, which are formed transversely, andoccur where the L-shaped or bayonet slots are formed in the locking rod5. The slots 18 are designed primarily for the receptionof thecontracted loop ends 19 of the rings or eyes 20. The sling ropes 21(which are arranged in parallelism for the greater parts of theirlengths) are attached to the staples 2 of the tubular rod of the lockingmeans. These sling ropes 21 are connected by transverse pieces 22, whichare constructed of any suitable material, such as elm, in order to holdthe sling ropes or cables equally spaced and in parallelism, as shown inthe drawings. The end portions of the sling ropes 21 at one end of theunloading sling converge toward each other as shown at 23 and areattached to the eyes 2% of the semi-circular ring 25. The unloadingsling comprises additional sling ropes or cables 26, which are attachedto the eyes or rings 20, and these sling ropes are also spaced inparallelism by the transverse pieces 28, which may be constructed of anysuitable material, preferably elm, and have their end portions 29converging toward each other, the extremities of which are fastened tothe eyes 30 of the semicircular ring 31. W hen the contracted loops 19are inserted in the slots 18 of the tubular rod, the locking rod isallowed to spring back in place under the action of the coil spring 15,thereby permitting the tongues 31 (which adjoin the L-shaped slots 7) toenter the elongated openings 32 of the contracted loops 19, therebyconnecting the loops 19 to the tubular rod of the locking means betweenthe two sets of sling ropes or cables. lVhen the locking rod 5 is movedin the direction of the arrow a, by pulling upon the trip rope, which isattached to the ring 10, the lug 14 of the spring catch or resilienttongue will engage the end of the tubular rod, holding the locking rodin an unlocked position, with the tongues 31 out of engagement with theelongated openings 32 of the contracted loops 19.

In the operation of the unloading sling for wagons, it is to be observedthat the sling is arranged on the wagon body transversely thereof, thelocking means engaging the bottom of the body of the wagonlongitudinally thereof, while the sling ropes or cables extend upwardlyof the inner faces of the sides of the body, and overhang the sides ofthe body. The material to be unloaded is arranged in the body of thewagon on the sling, until the body is completely loaded. The other endportions of the sling ropes are brought together, until the eyes 25 and31 are in registration, and may be connected in any suitable manner ifdesired. The wagon is then driven to the barn or other place where thematerial is 'to be unloaded. Any suitable attaching device of a hoistingmeans (not shown) may then be connected to the eyes 25 and 31, and thehoisting means is then operated, whereby the material may be lifted orhoisted from the body of the wagon. The load of material is then hoistedand swung into position to be released. To release the load of material,the trip rope is pulled, actuating the locking rod 5 against the actionof the coil spring 15, thereby disengaging the tongues 31 from theelongated openings 32 of the contracted loops 19. The contracted loops19 quickly disengage from the elongated slots 18, allowing the load ofmaterial to be released from the sling ropes. The sling ropes or cables26 are then reconnected to the tubular rod, by means of the locking rodand the contracted loops 19, the sling is then disconnected from thehoisting means, after which the sling is then ready to be replaced uponthe wagon body to receive another load of material.

The invention having been set forth, what is claimed as new and usefulis:

1. The combination with the adjacent ends of sling ropes, of aconnecting device between the adjacent ends, said connecting devicecomprising a tubular rod having staples to which one set of the adjacentends are permanently attached, said tubular rod having a series ofelongated slots, the other adjacent ends of the sling ropes havingcontracted loops engaging through the slots, a locking rodlongitudinally movable through the tubular rod and provided withL-shaped slots having adjoining tongues to enter the openings of thecontracted loops of the latter adjacent ends of the sling ropes, springmeans for the locking rod, and means for manually actuating the lockingrod against the action of the spring means, and a spring latching meanscarried by the lock ing rod provided with means to engage the end of thetubular rod, to hold the locking rod in an inoperative position.

2. The combination with the adjacent ends of sling ropes, of a tubularrod, a plurality of staples having spaced shanks eX- tendingtransversely of the tubular rod and being permanently fixed thereto, andto which one set of adjacent ends are attached, contracted loopsconnected to the other set of adjacent ends, said tubular rod having aplurality of slots to receive said contracted loops, a locking rodextending, movably through the tubular rod and guided between the spacedshanks of the staples, and provided with tongues at intervals to engagethe contracted loops, spring means for the locking rod, and means foractuating the locking rod against the action of the spring means, meansfor limiting the locking rod in its movement. and a spring latchingmeans carried by the locking rod to engage one end of the tubular rod tohold the locking rod in an inoperative position, with the tonguesdetached from the contracted loops. I

In testimony whereof I hereunto aflix my signature in the presence oftwo witnesses.

CHRIS W. LINNERTZ.

